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人工黏性增强三维移动粒子半隐算法稳定性

冯美艳 黄生洪

冯美艳, 黄生洪. 人工黏性增强三维移动粒子半隐算法稳定性[J]. 力学学报, 2013, 45(4): 515-524. doi: 10.6052/0459-1879-12-247
引用本文: 冯美艳, 黄生洪. 人工黏性增强三维移动粒子半隐算法稳定性[J]. 力学学报, 2013, 45(4): 515-524. doi: 10.6052/0459-1879-12-247
Feng Meiyan, Huang Shenghong. ENHANCEMENT OF STABILITY OF 3D MOVING PARTICLE SEMI-IMPLICIT METHOD BY ARTIFICIAL VISCOSITY[J]. Chinese Journal of Theoretical and Applied Mechanics, 2013, 45(4): 515-524. doi: 10.6052/0459-1879-12-247
Citation: Feng Meiyan, Huang Shenghong. ENHANCEMENT OF STABILITY OF 3D MOVING PARTICLE SEMI-IMPLICIT METHOD BY ARTIFICIAL VISCOSITY[J]. Chinese Journal of Theoretical and Applied Mechanics, 2013, 45(4): 515-524. doi: 10.6052/0459-1879-12-247

人工黏性增强三维移动粒子半隐算法稳定性

doi: 10.6052/0459-1879-12-247
基金项目: 国家自然科学基金(10772174)和国家专项(2013GB113000)资助项目.
详细信息
    通讯作者:

    黄生洪,副教授,主要研究方向:多相与多场耦合流动.E-mail:hshnpu@ustc.edu.cn

  • 中图分类号: O351

ENHANCEMENT OF STABILITY OF 3D MOVING PARTICLE SEMI-IMPLICIT METHOD BY ARTIFICIAL VISCOSITY

Funds: The project was supported by the National Natural Science Foundation of China (10772174) and the National Special Found (2013GB113000).
  • 摘要: 通过综合比较移动粒子半隐方法(moving-particle semi-implicitmethod, MPS)各种稳定性计算方法, 考虑了多种可能导致计算不稳定的因素, 并首次提出加入人工黏性来抑制非物理压力振荡, 得到了较为稳定的三维MPS算法.采用各种稳定性方案对比模拟了三维立方流体旋转状态下的变形及三维静水压问题, 并进一步与商业软件的流体体积函数方法(volumeof fluid, VOF)模型计算结果对比, 验证了其正确性.结果表明:对三维情形, 单纯应用已有的稳定性算法仍难以满足MPS计算稳定性的要求, 而进一步辅以该文提出的人工黏性方法则可以在准确性及稳定性方面均取得较好的效果, 且计算结果显示, 通过该文提出的开关模式增加人工黏性并不影响压强泊松方程的求解精度, 因而不会对流场的求解产生负面作用.

     

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出版历程
  • 收稿日期:  2012-09-11
  • 修回日期:  2013-03-15
  • 刊出日期:  2013-07-18

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